Speciation Analysis of Arsenic Compounds by High-Performance Liquid Chromatography in Combination with Inductively Coupled Plasma Dynamic Reaction Cell Quadrupole Mass Spectrometry: Application for Vietnamese Rice Samples
Table 3
Characteristics of the chromatographic separation of arsenic species on the Hamilton PRP X100 column.
No.
Analyte
Retention time (min, mean value ± SD, )
Resolution (mean value ± SD, )
Symmetry (mean value ± SD, )
W (min, mean value ± SD, )
Column recovery (%, value ± SD, )
1
AsB
2.00 ± 0.15
—
1.51 ± 0.14
0.410 ± 0.033
85.3 ± 1.0
2
As(III)
3.54 ± 0.25
2.97 ± 0.11
2.01 ± 0.27
0.560 ± 0.019
95.6 ± 0.5
3
DMA
5.10 ± 0.10
2.47 ± 0.35
1.29 ± 0.18
0.488 ± 0.052
86.7 ± 1.5
4
MMA
10.53 ± 0.01
10.16 ± 0.26
0.86 ± 0.02
0.623 ± 0.040
97.9 ± 2.1
5
As(V)
14.06 ± 0.03
5.25 ± 0.24
0.99 ± 0.10
0.842 ± 0.032
98.9 ± 0.5
Resolution = ; symmetry = according to European Pharmacopeia.
